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  • Transcontinental Gas Pipe Line Company, LLC

    APPLICATION FOR CONSTRUCTION OF THE ROCKAWAY DELIVERY LATERAL PROJECT

    LONG ISLAND SOUND LONG ISLAND, NEW YORK

    SUBMITTED TO: NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION

    JANUARY 2014

    EE-000891_0044_05-B3956

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    Table of Contents

    EXECUTIVE SUMMARY................................................................................................................... 1

    1.0 PERMIT APPLICATION ...............................................................................................1-1 1.1 Joint Application for Permit ......................................................................... 1-1

    1.2 Additional Responses for Joint Application Form 09/10 .............................. 1-4

    2.0 PROJECT DESCRIPTION ............................................................................................2-1 2.1 Proposed Facilities ..................................................................................... 2-2

    2.1.1 Pipeline Facilities ............................................................................ 2-2

    2.1.1.1 Pipeline Rights-of-Way .................................................. 2-3

    2.1.1.2 Pipe Yards..................................................................... 2-8

    2.1.2 Aboveground Facilities ................................................................... 2-8

    2.2 Dredging and Filling Activities .................................................................... 2-8

    2.2.1 Dredged Material Characteristics .................................................... 2-8

    2.2.1.1 Physical Composition .................................................... 2-8

    2.2.1.2 Chemical Composition ................................................ 2-10

    2.2.2 Dredging Activity Summary ........................................................... 2-10

    2.2.3 Fill Activity Summary .................................................................... 2-10

    2.3 Project Construction ................................................................................. 2-11

    2.3.1 General Offshore Pipeline Construction Procedures ..................... 2-11

    2.3.1.1 Pipeline Design ........................................................... 2-12

    2.3.1.2 Offshore Pipe Lay........................................................ 2-12

    2.3.1.3 Subsea Trenching Jet-Sled ......................................... 2-13

    2.3.1.4 Subsea Cable Crossing ............................................... 2-14

    2.3.1.5 Subsea Hot-Tap .......................................................... 2-15

    2.3.2 Horizontal Directional Drilling Installation ...................................... 2-16

    2.3.2.1 Drilling a Pilot Hole ...................................................... 2-16

    2.3.2.2 Opening or Reaming the Hole ..................................... 2-19

    2.3.2.3 Pull Back of the Pipe ................................................... 2-19

    2.3.2.4 Horizontal Directional Drilling Fluid .............................. 2-20

    2.3.3 Onshore Pipeline Construction Procedures .................................. 2-21

    2.3.4 Aboveground Facility Construction ............................................... 2-21

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    2.3.5 Construction Schedule .................................................................. 2-22

    2.4 Operations and Maintenance ................................................................... 2-22

    2.4.1 Pipeline......................................................................................... 2-23

    2.4.2 Aboveground Facilities ................................................................. 2-24

    3.0 PROJECT JUSTIFICATION ..........................................................................................3-1 3.1 Purpose and Need for the Proposed Work ................................................. 3-1

    3.1.1 National Grids Proposed Brooklyn-Queens Interconnect Project ... 3-2

    3.1.2 Transcos Rockaway Delivery Lateral Project ................................. 3-3

    3.2 Alternatives Analysis .................................................................................. 3-4

    3.2.1 No Action Alternative ...................................................................... 3-4

    3.2.1.1 Energy Conservation Alternatives ................................. 3-8

    3.2.1.2 Alternative Energy Sources ......................................... 3-11

    3.2.2 System Alternatives ...................................................................... 3-18

    3.2.2.1 Existing Pipelines ........................................................ 3-19

    3.2.2.2 New Pipeline Proposals............................................... 3-24

    3.2.2.3 Proposed Liquefied Natural Gas Facilities ................... 3-26

    3.2.3 Construction Alternatives .............................................................. 3-29

    3.2.3.1 Onshore Construction Alternatives .............................. 3-29

    3.2.3.2 Offshore Construction Alternatives .............................. 3-30

    3.2.4 Pipeline Route Alternatives ........................................................... 3-35

    3.2.4.1 Basic Pipeline Siting Requirements ............................. 3-35

    3.2.4.2 Siting Control Points .................................................... 3-36

    3.2.4.3 Overview of Pipeline Routing Alternatives ................... 3-37

    3.2.4.4 Pipeline Route Alternatives Evaluation ........................ 3-40

    3.2.4.5 Summary ..................................................................... 3-45

    3.3 Adjacent Property Owners ....................................................................... 3-45

    3.4 Environmental Review and Project Assessment....................................... 3-46

    3.4.1 Construction Schedule .................................................................. 3-48

    3.4.1.1 Biological Communities ............................................... 3-49

    3.4.1.2 Gateway National Recreation Area Visitors ................. 3-50

    3.4.1.3 Vessel Traffic and Boater Activities ............................. 3-50

    3.4.2 Burial Depth .................................................................................. 3-51

    3.4.3 Active Backfill ............................................................................... 3-53

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    3.4.4 Trenching ..................................................................................... 3-55

    3.4.5 HDD Exit Pit ................................................................................. 3-56

    3.4.6 Grout Mattresses .......................................................................... 3-56

    3.4.7 Anode Bed .................................................................................... 3-57

    3.4.8 Cable Crossing ............................................................................. 3-58

    3.4.9 Sediment Disturbance .................................................................. 3-58

    3.4.9.1 Sedimentation ............................................................. 3-58

    3.4.9.2 Total Suspended Solids............................................... 3-60

    4.0 COASTAL ZONE CONSISTENCY .................................................................................4-1

    5.0 REFERENCES ...........................................................................................................5-1

    APPENDICES APPENDIX A FIGURES ........................................................................................................... A-1 APPENDIX B REPRESENTATIVE SITE PHOTOS ......................................................................... B-1 APPENDIX C PERMISSION TO INSPECT PROPERTY .................................................................. C-1 APPENDIX D FULL ENVIRONMENTAL ASSESSMENT FORM ....................................................... D-1 APPENDIX E NYSDOS CONCURRENCE FOR PROJECT CONSISTENCY WITH THE NEW YORK

    STATE COASTAL MANAGEMENT PLAN AND THE NEW YORK CITY WATERFRONT REVITALIZATION PROGRAM CONSISTENCY .................................... E-1

    APPENDIX F CRITICAL ENERGY INFRASTRUCTURE INFORMATION ............................................ F-1 APPENDIX G HYDRODYNAMIC AND SEDIMENT TRANSPORT ANALYSES FOR ROCKAWAY

    DELIVERY LATERAL PROJECT ............................................................................ G-1 APPENDIX H HYDRODYNAMIC AND SEDIMENT TRANSPORT ANALYSES FOR ROCKAWAY

    DELIVERY LATERAL PROJECT: ADDENDUM 1 ...................................................... H-1 APPENDIX I HYDRODYNAMIC AND SEDIMENT TRANSPORT ANALYSES FOR ROCKAWAY

    DELIVERY LATERAL PROJECT: ADDENDUM 2 ....................................................... I-1

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    List of Tables

    Table 1.1 Route Position List ............................................................................................... 1-5

    Table 1.2 Project Description Reference Table .................................................................... 1-6

    Table 1.3 Agency Permits and Approvals for the Project...................................................... 1-6

    Table 2.1 Pipeline Segment Lengths.................................................................................... 2-3

    Table 2.2 Offshore Construction Land Requirements ........................................................... 2-4

    Table 2.3 Onshore Construction Land Requirements ....................